Transcript
Let’s take a minute and talk about two key differences in backflow preventers required in state plumbing codes that shield and protect our water from the threats of backflow contamination.
We can think about it like this: Overall, there are two types of backflow preventers. The testable type that many of you are familiar with, the spill resistant vacuum breaker in this case, requires an annual test that may vary from state to state.
But that annual test performed by a certified tester is documented on a test form, right? And typically that test form is shared with the local water purveyor as part of a cross-connection control program.
But in plumbing codes we have other types of backflow preventers that are equally as important as the testable-type backflow preventers. Yet often they go out of sight and out of mind as part of a cross-connection control program.
Some programs require containment, as we know, where there’s a backflow preventer assembly at that service line connection.
And maybe these other types of backflow preventers aren’t part of your cross-connection control program, but I want everyone to consider that we have backflow prevention devices and assemblies all around us.
In fact, everyone watching this today very likely stood right in front of a backflow preventer, yet you didn’t consider that.
And here’s why it’s so obvious we forget about it: That’s the simple air gap at a kitchen or bathroom sink. Without that critical air gap separating the drinking water supply in your home from the sewer—the drain—we would have a direct high-hazard connection.
So let’s not forget about the non-testable type backflow preventers in addition to the testable-type backflow preventers as part of our cross-connection control program.
I’m Gary, the Backflow Nerd, with HydroCorp, and I’ll see you next time on the Backflow Minute.
